Free Tool
Convert CSV
to XLSX for Free.
Turn a raw CSV export into a proper Excel spreadsheet. Converted in your browser — your data is never uploaded.
Trusted by 5m+ people who would rather show than tell
Free Converter
CSV to XLSX Converter
Drag your CSV here or click to browse
Comma-separated .csv files
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How It Works
Three steps to get started
01
Upload CSV
Drop in the CSV export from your app or database.
02
Instant Conversion
Rows and columns are parsed and rebuilt as a real Excel workbook in your browser.
03
Download XLSX
Open the result directly in Excel, Numbers, or Google Sheets.
Clean Data
Raw export
to real spreadsheet.
CSVs lose types, formatting, and encodings the moment someone double-clicks them. Converting to XLSX keeps columns as columns.
- Preserves every row and column
- Handles quoted fields and commas
- Data never leaves your browser
FAQ
Frequently Asked Questions
Yes, completely free. No account or credit card is required.
No. This tool runs entirely in your browser — your files are processed on your own device and never uploaded to a server.
Yes — the conversion runs locally in your browser. Your data is never sent to a server.
Files with hundreds of thousands of rows work, but conversion speed depends on your device.
Convert your data
for free today.
No account needed. Data never leaves your browser.